Malaysian Federal Constitution, which came into force in 1957, is the supreme law of Malaysia. Federal constitution establishes as a constitutional monarchy with the King as Head of State that role most of the ceremony. It provides for the establishment and organization of three main branches of government: The bicameral legislative branch called the Parliament, which consists of the House of Representatives and Senate (Dewan Negara), the executive branch is headed by the Prime Minister and Cabinet Minister; and the judicial branch is headed by the Federal Court.